About nine million kilograms of ice stretches into tall towers and tunnels covering nearly a hectare in William Hawrelak Park.

More than 20 workers started creating the cool curiosity at the end of November.

Davis said they grew at least 10,000 icicles per day on racks using sprinklers, with hoses running 23 million litres of water from a fire hydrant. The chunks were then placed by hand on top of each other and fused in place with more sprinklers.

“We spray them with water and, when you spray an icicle with water, it gets thicker and thicker, and we do that over and over and over and over again,” he said.

Amid the archways, there’s also a fountain, a waterfall, a fireplace, a throne room and two slides. LED lights buried in the ice illuminate the castle in different colours at night.